| As there are limit ranges to capacity of the wireless sensor network communication, the electricity power, the computing speed and the storage space, and the intensive sensor node configuration, the flexible network topology and other defects. It cannot guarantee the data confidentiality, integrity authenticity and timeliness when in the transmission. These defects are detrimental to the development of wireless sensor networks, secure and reliable network transmission to ensure its future promotion will be greatly hindered. These issues have promoted research that based on the ZigBee security message transmission. For this purpose, in this article from the characteristics of the ZigBee network nodes and ZigBee communication network security analysis and research, summed ZigBee secure transmission of messages in the application layer is the key to the problem. Therefore, a ZigBee application layer message security mechanisms, wireless sensor network is divided into hierarchical cluster-based architecture, the application of group key agreement mechanism extended by the Diffie-Hellman protocol, combined with the principle of the DES encryption algorithm in CBC mode, the ZigBee application layer message data package.Finally, conduct the experiment and analysis for ZigBee application layer message security mechanisms. In this paper, a ZigBee communication hardware platform uses CC2530module, and add SAM card to CC2530module by LTC1756module and ISO7816hardware interface driver, in this article ZigBee application layer message security mechanisms is applied to ZigBee communication network, and uses the CC2531modules and PacketSniffer software of its application layer message data secure transmission for experiments and analysis, and it has proved the feasibility of the proposed ZigBee application layer message security mechanisms. Then, make a comparison in encryption efficiency among the software on DES, DES hardware, DES software in CBC mode and DES hardware of CBC model. |
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